Purpose: The purposes of this study were 1) to assess the validity of patie
nt self-report in identifying illegal substance abuse and 2) to identify nu
tritional deficiencies in substance abusers presenting for treatment of man
dible fractures.
Patients and Methods: To address the research purposes, a prospective cohor
t study was conducted Of patients presenting for treatment of mandible frac
tures. A urine drug screen was used to determine the validity of patient se
lf-report of substance abuse. For purposes of assessing nutritional status,
2 categories of substance abusers were identified: illegal and legal (alco
hol). The nutritional status was measured using various laboratory markers.
Results: The sample was composed of 93 subjects. Urine:drug studies were av
ailable for 32 patients. Of the 22 patients who denied illegal drug use, 12
(55%) had a positive drug screen. Of the 10 patients reporting a positive
history of illicit drug use, 7 (70%) had a positive urine drug screen (P =.
47). A positive correlation was found between alcohol exposure and serum as
partate aminotransferase, mean corpuscular volume, and lactate dehydrogenas
e. Positive drug screens also were associated with increased serum ferritin
levels.
Conclusions: The results of this study suggest that patient self-report of
illicit drug use may be unreliable. The findings also suggest that legal an
d illegal substance abusers presenting for treatment of mandible fractures
have minimal nutritional deficiencies.